Chinese Journal of Catalysis ›› 2006, Vol. 27 ›› Issue (10): 895-898.

• Articles • Previous Articles     Next Articles

Preparation and Catalytic Performance of Cr2O3-ZnO Catalyst for Methanol Steam Reforming

CAO Weiqiang, CHEN Guangwen*, CHU Jiansheng, LI Shulian, YUAN Quan   

  1. Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2006-10-25 Online:2006-10-25 Published:2010-11-28

Abstract: The Cr2O3-ZnO catalyst for methanol steam reforming was prepared by the co-precipitation method and characterized by means of X-ray diffraction and N2 adsorption. The catalytic performance for methanol steam reforming was evaluated using a stainless steel microchannel reactor. The addition of Cr to ZnO resulted in the formation of ZnCr2O4 spinel and promoted the activity and stability of the catalysts, although the BET surface area decreased. However, raising the Cr content also led to an increase in the CO selectivity. The Cr2O3-ZnO catalysts with the Cr content of 5.3%[KG-45x]-[KG-20x]17.6% calcined at above 500 ℃ exhibited better catalytic performance than that calcined at 400 ℃.

Key words: methanol, steam reforming, zinc oxide, chromium oxide, hydrogen, microreactor